Hard call to make, and one that only YOU can make at the time. I installed a hard-wired Progressive Industries EMS-LCHW50. I bought the bypass switch that goes with it, but haven't installed it yet for fear that if my EMS won't let current through, there must be something wrong and bypassing it would be a bad thing. I didn't originally have an EMS on my coach and got a damaged house thermostat as a result. We were camping in a State Park on a hot summer weekend.....both A/Cs were running hard. We left with some friends to go out on the boat for a few hours and when we came back, we had no A/C. Apparently, there was a brown-out in the campground due to an influx of campers coming in that day and turning on their A/Cs as well. I was able to repair the thermostat myself, but it could have been other, more expensive appliances as well. After that wake-up call I decided to get the EMS and to trust it.
Long story to get to my point....If I were in the shoes you describe, I think I'd either dry camp and run the genset to recharge OR....I'd leave.
